JPWO2017086262A1 - Biohazard countermeasure cabinet and clean bench - Google Patents

Abstract

  The biohazard countermeasure cabinet or the like according to the present invention includes a bottom plate 4 provided in the main body case 2 and a flexible portion 13 provided in the front shutter protector 6 provided at the lower end of the front shutter 5. By sucking outside air into the main body case 2 from the gap 15 formed at the contact portion between the portion 13 and the bottom plate 4, it is possible to reduce the load on the front shutter and ensure reliability.

Description

  The present invention relates to a biohazard countermeasure cabinet and a clean bench used for, for example, experimental environmental equipment.

  This conventional type, for example, a biohazard countermeasure cabinet, includes a box-shaped main body case and an air conditioner that performs air conditioning in the main body case. The air flow is provided between the front shutter provided at the front opening of the main body case and the bottom plate by circulating the air inside the main body case with the air conditioner and exhausting part or all of it. From the space of the hand insertion part, it was the structure which sucks in the air of the almost same quantity as the exhausted air.

(The following patent document 1 exists as a prior document similar to this).

JP 2014-193463 A

  A biohazard countermeasure cabinet or clean bench (hereinafter referred to as a “biohazard countermeasure cabinet, etc.”) is an air conditioner to ensure the cleanliness of the main body case when an operator works in the main body case. Therefore, it is necessary to maintain a negative pressure or a positive pressure in the main body case.

  Further, since the cleanliness in the main body case is not significantly reduced except during work, it is common to lower the front shutter to the lowest point when the work is interrupted or terminated.

  At that time, if the front opening is covered with the front shutter while the air conditioner is in operation and the space for the manual insertion section is lost, positive or negative pressure is applied to the front shutter, which may damage the front shutter. there were.

  For this reason, conventional biohazard countermeasure cabinets and the like have a structure in which the bottom plate and the front shutter are not in contact with the front shutter lowered to the lowest point. In some cases, it was not possible to maintain a sufficient degree of reliability, and reliability could not be ensured as a biohazard countermeasure cabinet or the like.

  Therefore, the present invention aims to ensure reliability by maintaining cleanliness and reducing the load on the front shutter even when not used as a biohazard countermeasure cabinet or the like.

  In order to achieve this object, the present invention provides a box-shaped main body case having an opening on the front surface, an air conditioner for performing air conditioning in the main body case, a bottom plate provided in the opening, and the opening. In a state where the front shutter that can move in the vertical direction covering the part, the front shutter protector provided at the lower end of the front shutter, the front shutter protector, and the front shutter moved to the lowest point, A flexible portion that is in contact with the bottom plate and provided substantially equal to the width of the opening, and a gap formed at a contact portion between the flexible portion and the bottom plate, thereby It achieves the intended purpose.

  As described above, the present invention includes a box-shaped main body case having an opening on the front surface, an air conditioner that performs air conditioning in the main body case, a bottom plate provided in the opening, and a vertical direction that covers the opening. A front shutter that is movable, a front shutter protector provided at a lower end of the front shutter, and provided in the front shutter protector, in contact with the bottom plate in a state where the front shutter is moved to the lowest point. In addition, the biohazard countermeasure cabinet includes a flexible portion provided approximately equal to the width of the opening, and a gap formed at a contact portion between the flexible portion and the bottom plate. As a result, reliability can be ensured. That is, the opening is configured to suck outside air into the main body case or blow out air inside the main body case by the air conditioner, and keeps the cleanliness and the front shutter when not used in the biohazard countermeasure cabinet or the like. Can reduce the load.

  In addition, when the air conditioner is in operation, the front shutter is moved to the lowest point, keeping the flexible part of the front shutter protector and the bottom plate in contact with each other, and the inside of the main body case can be connected to the outside by the gap. it can.

  Therefore, even when not used in a biohazard countermeasure cabinet, etc., it is possible to maintain cleanliness and reduce the load on the front shutter, and as a result, ensure reliability as a biohazard countermeasure cabinet, etc. Can do.

1 is a schematic cross-sectional view of a biohazard countermeasure cabinet according to an embodiment of the present invention. The figure explaining the principal part of the cabinet for a biohazard countermeasure of FIG. The figure explaining the principal part of the cabinet for a biohazard countermeasure of FIG. The figure explaining the principal part of the cabinet for a biohazard countermeasure of FIG. The figure explaining the principal part of the cabinet for a biohazard countermeasure of FIG. The figure explaining the principal part of the cabinet for a biohazard countermeasure of FIG. The figure explaining the principal part of the cabinet for a biohazard countermeasure of FIG.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment 1)
FIG. 1 is a schematic sectional view of a biohazard countermeasure cabinet in the present embodiment.

  As shown in FIG. 1, a biohazard countermeasure cabinet (hereinafter referred to as a cabinet) 1 in the present embodiment is an apparatus used for experimental environment equipment, for example. Work to handle viruses.

  The cabinet 1 includes a main body case 2, an air conditioner 3, a bottom plate 4, a front shutter 5, and a front shutter protector 6.

  The main body case 2 is a box-shaped member having an opening 7 on the front surface, and an operator who uses the cabinet 1 performs work with a hand inserted through the opening 7 into the main body case 2.

  The opening 7 of the main body case 2 is covered with a front shutter 5. The front shutter 5 is configured to be movable in the vertical direction with respect to the cabinet 1. By moving the front shutter 5, the opening area of the opening 7 of the main body case 2 can be increased or decreased. Let

  Specifically, for example, when an experimental sample or equipment is placed inside the main body case 2, the front shutter 5 is moved upward to increase the opening area of the opening 7 to facilitate the work.

  In addition, in the stage of performing an experiment or the like after putting a sample or equipment in the main body case 2, the front shutter 5 is moved downward to reduce the opening area of the opening 7, thereby reducing the main body case 2. A working environment necessary for the experiment is secured inside.

  In other words, the opening area of the opening 7 is large enough to allow the operator to work with the hand inserted into the main body case 2 from the opening 7, and bacteria and viruses handled by the operator can be removed. It is made small to such an extent that it can be kept inside the main body case 2.

  The front shutter 5 is composed of a transparent member such as a glass plate, and an operator can perform work while viewing the state in the main body case 2 through the front shutter 5 in a state where work such as an experiment is performed. It is said.

  A bottom plate 4 is provided on the bottom side in the main body case 2 which is the downward direction.

  The bottom plate 4 is, for example, a metal plate-like member, is formed by pressing or the like, and is provided in a state substantially orthogonal to the back plate.

  The bottom plate 4 has a work table for performing experiments and the like.

  A back plate 8 is provided on the side opposite to the front shutter 5 in the main body case 2. That is, the back plate 8 is provided on the back side that is the back direction in the main body case 2.

  The back plate 8 is, for example, a metal plate-like member, and the main body case 2 formed by pressing or the like includes a pair of side plates substantially orthogonal to the back plate in the left-right direction and a back plate in the upward direction. It has a configuration further comprising a top plate that is substantially orthogonal.

  A box-shaped work space is formed inside the main body case 2.

  An air conditioner 3 is installed on the top side, which is the upper direction of the main body case 2.

  The air conditioner 3 is a device that sends air into the inside of the main body case 2 and has a filter such as a HEPA (High-Efficiency Particulate Air filter).

  And it is set as the structure which maintains the environment in the main body case 2 in a sterilized state by sending the air which removed the microbe etc. with this filter in the main body case 2. FIG.

  Further, in the bottom plate 4, a front side gas discharge unit 9 is provided on the front side of the main body case 2, and a back side gas discharge unit 10 is provided on the lower side of the back plate.

  The air sent to the inside of the main body case 2 by the air conditioner 3 is discharged out of the main body case 2 from the front side gas discharge part 9 and the back side gas discharge part 10.

  A rectifying plate 11 is installed below the air conditioner 3.

  Specifically, for example, the rectifying plate is fixed or supported at the three points of the opening on the front side of the main body case 2, the back side that is the back direction, and the central part that is the center of the opening side and the back side. 11 is installed.

  Here, the front shutter protector 6 in the present embodiment will be described in more detail with reference to FIG.

  FIG. 2 is an enlarged detailed cross-sectional view of a portion A shown in FIG.

  As shown in FIG. 2, the front shutter protector 6 includes a hard part 12 and a flexible part 13.

The hard part 12 has an attachment part 12 a for attaching the front shutter protector 6 to the front shutter 5.
The hard part 12 is made of, for example, polyvinyl chloride (PVC (Polyvinyl Chloride)), polymethyl methacrylate resin (PMMA (Polymethyl Methylacrylate)), AES (Acrylonitrile Ethylene-Proline-Styrene Aline Aline Aline). It is formed by molding a resin material such as.

  The attachment portion 12a has, for example, a clip-like shape with an upper portion opened, and the attachment portion 12a is inserted into the lower end surface of the front shutter 5 from the opened upper portion. And the attachment part 12a is attached with respect to the lower end surface of the front shutter 5 by setting it as the structure which becomes press fit with respect to the lower end surface of the front shutter 5, for example.

  FIG. 3 is a detailed cross-sectional view in which the flexible portion 13 contacts the bottom plate 4 with the front shutter 5 moved to the lowest point.

  As shown in FIG. 3, in a state where the front shutter 5 is moved to the lowest point, the flexible portion 13 is longer than the spatial distance between the hard portion 12 and the bottom plate 4, and the width of the opening 7 shown in FIG. They are provided approximately the same.

The flexible portion 13 is formed of a flexible material such as rubber, soft polyvinyl chloride having a hardness of approximately 60 degrees, or soft polymethyl methacrylate resin, and the front shutter 5 The base plate 4 is in contact with the bottom plate 4 while being bent in the state where it has moved to the lowest point. In other words, the flexible portion 13 is configured to be in contact with the bottom plate 4 being biased by being bent. By doing in this way, it can reduce that a clearance gap arises in the field where flexible part 13 touches bottom board 4.
In addition, the range substantially equivalent to the width | variety of the opening part 7 (refer FIG. 1) of the main body case 2 where the flexible part 13 and the baseplate 4 contact is made into the contact part.
Here, the hardness of the material of the flexible portion 13 is preferably lower than the hardness of the material of the hard portion 12 described above.

And the flexible part 13 prevents that the foreign material enters into the main body case 2 in the state which is not using the product by contacting the bottom face plate 4 in the state which moved the front shutter 5 to the lowest point. Can do.
In the present embodiment, the front shutter protector 6 has been described as being configured by the hard portion 12 and the flexible portion 13, but is not limited thereto.
For example, the flexible part 13 may be formed directly on the front shutter 5 without using the hard part 12.
Specifically, the front shutter 5 and the flexible portion 13 may be formed with a coupling portion and a coupled portion, respectively, and these may be combined by fitting or the like. Further, depending on the material of the front shutter 5 and the flexible portion 13, the two may be coupled by means such as adhesion or welding.

  Next, the gap formed by the bottom plate 4 and the flexible portion 13 will be described in detail with reference to FIGS. 4 and 5.

  4 and 5 are detailed views when the front portion of the flexible portion 13 of the front shutter protector 6 is in contact with the bottom plate 4 when the front shutter 5 is moved to the lowest point.

  As shown in FIG. 4A, a protrusion 14 is provided on the bottom plate 4, and a gap 15 is formed by the bottom plate 4 and the flexible portion 13 when the front shutter 5 is moved to the lowest point. That is, in the state where the front shutter 5 is moved to the lowest point, the gap 15 is formed by changing the height with which the flexible portion 13 contacts.

  By doing in this way, it is set as the structure which can take in external air in the main body case 2 from the clearance gap 15 formed when the flexible part 13 and the protrusion 14 contact | connect while the air conditioner 3 is working. Although omitted in FIG. 4A, the front shutter 5 is located above the hard portion 12 as shown in FIG.

  Further, the gap 15 for taking outside air into the main body case 2 is provided with a recess 16 in the bottom plate 4 as shown in FIG. 4B or a hole 17 as shown in FIG. 4C. Or may be formed.

  Further, as shown in FIG. 5, the flexible portion 13 is provided with a slit 18 as shown in FIG. 5 (a), a cut 19 as shown in FIG. 5 (b), or FIG. It is good also as a structure which forms the clearance gap 15 by providing the hole 20 as described in (c).

  As described above, in this embodiment, the opening 7 has a configuration in which the air conditioner 3 sucks outside air into the main body case 2 or blows out air in the main body case 2 and is used in a biohazard countermeasure cabinet or the like. In this state, the cleanliness can be maintained and the load on the front shutter 5 can be reduced.

  Further, while the air conditioner 3 is operating, the front shutter 5 is moved to the lowest point, the state where the flexible portion 13 of the front shutter protector 6 and the bottom plate 4 are kept in contact with each other, and the main body case 2 by the gap portion 15. The inside can be connected to the outside. That is, outside air can be taken into the main body case 2 from the gap portion 15.

  Therefore, even when not used in a biohazard countermeasure cabinet or the like, the cleanliness can be maintained and the load on the front shutter 5 can be reduced. As a result, reliability as a biohazard countermeasure cabinet or the like is ensured. be able to.

  Next, the arrangement and shape of the protrusions 14 provided on the bottom plate 4 will be described in detail with reference to FIGS.

  6 and 7 are views of the bottom plate 4 as viewed from above, and are diagrams showing an example of the arrangement or shape of the protrusions 14 provided on the bottom plate 4. Also in FIGS. 6 and 7, the front shutter 5 is omitted as in FIGS. 4 and 5.

  It is assumed that the positional relationship between the bottom plate 4 and the front shutter 5 slightly fluctuates due to assembly variations. 6 indicates a virtual range 21 in which the flexible portion 13 of the front shutter protector 6 contacts the bottom plate 4 in consideration of these variations.

  With respect to the virtual range 21, the hatched portion shown in FIG. 6 indicates the actual range 22 in which the flexible portion 13 of the front shutter protector 6 actually contacts the bottom plate 4.

  FIG. 6A shows an example in which the protrusion 114 a is formed larger than the virtual range 21 in contact with the flexible portion 13 of the front shutter protector 6. By using the protrusion 114a larger than the virtual range 21 in this way, it is possible to reliably form the gap 15 formed by the bottom plate 4 and the flexible portion 13 in a state where the front shutter 5 is moved to the lowest point. It becomes.

  Here, although the substantially elliptical protrusion 114a is shown as an example, the shape is not limited to this, and the outer shape such as a rectangular shape, a circular shape, and an irregular shape is not limited.

  Further, in the case where the protrusion 114a larger than the virtual range 21 is too large and the presence is obstructive, the protrusion 114b smaller than the virtual range 21 is distributed more widely than the virtual range 21 as shown in FIG. A plurality of them may be installed. This also makes it possible to reliably form the gap 15 formed by the bottom plate 4 and the flexible portion 13 in a state where the front shutter 5 is moved to the lowest point.

  Here, two small circular protrusions 114b are arranged side by side, but the shape and number are not limited thereto. Further, the protrusion 114 a and the protrusion 114 b may be mixed with the bottom plate 4.

  Further, the bottom plate 4 is a part where an operator using the cabinet 1 may perform work with his / her arm on. Therefore, as shown in FIG. 7, when a plurality of protrusions 114a and protrusions 114b are arranged in the left-right direction, it is only necessary to form protrusions at least at one place in the range 23 where the worker's arm indicated by the shaded area does not hit. .

  As a result, the operator's arm can be arranged while avoiding it, so that it is possible to eliminate the annoyance caused by the operator's arm hitting the protrusion 14. Although FIG. 7 describes five protrusions at three locations, the shape and number are not limited thereto.

  The example of the arrangement and shape of the protrusion described in FIGS. 6 and 7 may be a recess or a hole instead of the protrusion, and the same effect can be obtained.

  Moreover, although this embodiment demonstrated the cabinet for a biohazard countermeasure as an example, it is not limited to this, A clean bench etc. may be sufficient. That is, the clean bench has a structure in which the air in the main body case 2 is blown out from the opening 7 of the cabinet 1 shown in FIG. 1, but the same effect can be obtained by implementing the present invention also in the clean bench.

  That is, when the front shutter is moved to the lowest point, the air inside the main body case is blown out from the gap formed at the contact portion between the flexible portion and the bottom plate, so that it is not used on a clean bench or the like. However, the cleanliness can be maintained and the load on the front shutter can be reduced. As a result, reliability can be ensured.

  As described above, in the biohazard countermeasure cabinet and clean bench of the present invention, reliability can be ensured as the biohazard countermeasure cabinet and clean bench.

  Therefore, for example, it is highly expected to be used as a biohazard countermeasure cabinet and clean bench used for experimental environment equipment.

1 Cabinet (Resident Evil Countermeasure Cabinet)
DESCRIPTION OF SYMBOLS 2 Main body case 3 Air conditioner 4 Bottom plate 5 Front shutter 6 Front shutter protector 7 Opening part 8 Back plate 9 Front side gas discharge part 10 Back side gas discharge part 11 Rectifier 12 Hard part 12a Attachment part 13 Flexible part 14, 114a, 114b Protrusion 15 Clearance 16 Recess 17 Hole 18 Slit 19 Notch 20 Hole 21 Virtual range 22 Actual range 23 Range where arm does not hit

[0002]
When the space for the operator insertion portion is eliminated, there is a possibility that the front shutter may be damaged by applying positive or negative pressure to the front shutter.
[0008]
For this reason, conventional biohazard countermeasure cabinets and the like have a structure in which the bottom plate and the front shutter are not in contact with the front shutter lowered to the lowest point. In some cases, it was not possible to maintain a sufficient degree of reliability, and reliability could not be ensured as a biohazard countermeasure cabinet or the like.
[0009]
Therefore, the present invention aims to ensure reliability by maintaining cleanliness and reducing the load on the front shutter even when not used as a biohazard countermeasure cabinet or the like.
Means for Solving the Problems [0010]
In order to achieve this object, the present invention includes a box-shaped main body case having an opening on the front surface, an air conditioner that performs air conditioning in the main body case, a bottom plate provided in the opening, and the bottom. A front-side gas discharge part provided on the front side of the main body case in the face plate, a front-side movable shutter covering the opening, a front-side shutter protector provided at a lower end of the front-side shutter, and the front side Provided in the shutter protector, in a state where the front shutter is moved to the lowest point, is in contact with the bottom plate, and is provided substantially equal to the width of the opening, and the front side is closer to the front side than the front side gas discharge part. The structure includes a flexible portion that contacts the bottom plate, and a gap formed at the contact portion between the flexible portion and the bottom plate, thereby achieving the intended purpose.
Effects of the Invention [0011]
As described above, the present invention provides a box-shaped main body case having an opening on the front surface, an air conditioner for performing air conditioning in the main body case, a bottom plate provided in the opening, and the main body case in the bottom plate. A front-side gas discharge part provided on the front side of the front side, a front-side shutter that can move in the vertical direction covering the opening, a front-side shutter protector provided at the lower end of the front-side shutter, and provided in the front-side shutter protector In the state where the front shutter is moved to the lowest point, the bottom shutter is in contact with the bottom plate and substantially equal to the width of the opening, and is in contact with the bottom plate on the front side from the front gas discharge portion. Since the configuration includes the flexible portion and the gap portion formed at the contact portion between the flexible portion and the bottom plate, reliability can be ensured as a biohazard countermeasure cabinet or the like. That is, open

[0006]
[0041]
The hard part 12 has an attachment part 12 a for attaching the front shutter protector 6 to the front shutter 5.
The hard part 12 is made of, for example, polyvinyl chloride (PVC (Polyvinyl Chloride)), polymethyl methacrylate resin (PMMA (Polymethyl Methylacrylate)), AES (Acrylonitrile Ethylene-Proline-Styrene Aline Aline Aline). It is formed by molding a resin material such as.
[0042]
The attachment portion 12a has, for example, a clip-like shape with an upper portion opened, and the attachment portion 12a is inserted into the lower end surface of the front shutter 5 from the opened upper portion. And the attachment part 12a is attached with respect to the lower end surface of the front shutter 5 by setting it as the structure which becomes press fit with respect to the lower end surface of the front shutter 5, for example.
[0043]
FIG. 3 is a detailed cross-sectional view in which the flexible portion 13 contacts the bottom plate 4 with the front shutter 5 moved to the lowest point.
[0044]
As shown in FIG. 3, in a state where the front shutter 5 is moved to the lowest point, the flexible portion 13 is longer than the spatial distance between the hard portion 12 and the bottom plate 4, and the width of the opening 7 shown in FIG. They are provided approximately the same and are in contact with the bottom plate 4 on the front side from the front side gas discharge part 9.
[0045]
The flexible portion 13 is formed of a flexible material such as rubber, soft polyvinyl chloride having a hardness of approximately 60 degrees, or soft polymethyl methacrylate resin, and the front shutter 5 The base plate 4 is in contact with the bottom plate 4 while being bent in the state where it has moved to the lowest point. In other words, the flexible portion 13 is configured to be in contact with the bottom plate 4 being biased by being bent. By doing in this way, it can reduce that a clearance gap arises in the field where flexible part 13 touches bottom board 4.
In addition, the range substantially equivalent to the width | variety of the opening part 7 (refer FIG. 1) of the main body case 2 where the flexible part 13 and the baseplate 4 contact is made into the contact part.
Here, the hardness of the material of the flexible portion 13 is equal to the hardness of the material of the hard portion 12 described above.

Claims (12)

A box-shaped main body case having an opening on the front surface;
An air conditioner for performing air conditioning in the main body case;
A bottom plate provided in the opening;
A front shutter that is movable in the vertical direction covering the opening;
A front shutter protector provided at a lower end of the front shutter;
A flexible portion provided in the front shutter protector, in contact with the bottom plate in a state where the front shutter is moved to the lowest point, and provided substantially equal to the width of the opening;
A gap formed in a contact portion between the flexible portion and the bottom plate;
A cabinet for biohazard countermeasures. The biohazard countermeasure cabinet according to claim 1, wherein in a state in which the front shutter is moved to the lowest point, outside air is sucked into the main body case from the gap portion. The gap portion is formed by providing a protrusion, a dent or a hole in the bottom plate at the contact portion with the flexible portion.
The biohazard countermeasure cabinet according to claim 1. The gap portion is formed by providing a slit, a cut or a hole in the flexible portion.
The biohazard countermeasure cabinet according to claim 1. The protrusion, the recess or the hole is formed larger than a range where the flexible portion is in contact with the bottom plate.
The biohazard countermeasure cabinet according to claim 3. The protrusion, the recess or the hole is formed smaller than a range where the flexible portion contacts the bottom plate, and the protrusion, the recess or the hole is distributed more widely than a range where the flexible portion contacts the bottom plate. The biohazard countermeasure cabinet according to claim 3, wherein a plurality of such cabinets are provided. A box-shaped main body case having an opening on the front surface;
An air conditioner for performing air conditioning in the main body case;
A bottom plate provided in the opening;
A front shutter that is movable in the vertical direction covering the opening;
A front shutter protector provided at a lower end of the front shutter;
A hard portion having a front shutter mounting portion provided in the front shutter protector;
In a state in which the front shutter is moved to the lowest point, a flexible portion that is longer than the spatial distance between the hard portion and the bottom plate and is provided approximately equal to the width of the opening;
A gap formed in a contact portion between the flexible portion and the bottom plate;
A clean bench equipped with. The clean bench according to claim 7, wherein air in the main body case is blown out from the gap portion in a state where the front shutter is moved to the lowest point. The gap portion is formed by providing a protrusion, a dent or a hole in the bottom plate at the contact portion with the flexible portion.
The clean bench according to claim 7 The gap portion is formed by providing a slit, a cut or a hole in the flexible portion.
The clean bench according to claim 7. The protrusion, the recess or the hole is formed larger than a range where the flexible portion is in contact with the bottom plate.
The clean bench according to claim 9. The protrusion, the recess or the hole is formed smaller than a range where the flexible portion contacts the bottom plate, and the protrusion, the recess or the hole is distributed more widely than a range where the flexible portion contacts the bottom plate. The clean bench according to claim 9, wherein a plurality of the clean benches are provided.

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